Machine for forming paper cup-bodies.



H. F. PROVANDIE.

MACHINE FOR FORMING PAPER CUP BODIES. APPLICATION FILED AUG. 30, 1913;

1,12%,517, v Patented Jan. 12, 1915.

2 SHEETSSHEET'1.

I H. F. PROVANDIE. MACHINE FOR FORMING PAPER CUP BODIES.

APPLIOATION FILED AUG. 30, 1913.

Patented Jan.12,1915.

2 SHEETSSHEBT 2.

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ic y L UNITED STATESPATENT orricn HERBERT F. PROVANDIE, 0F MELROSE, MASSACHUSETTS, ASSIGNOR TO AMERICAN WATER SUPPLY COMPANY OF NEW- ENGLAND, OF BOSTON, MASSACHUSETTS, A GORP PQBATION OF MASSACHUSETTS.

To all whom it may concern:

Be it known that I, HERBERT F. PROVAN- nm, a citizen of the United States, residing at Melrose, in the county of Middlesex and State of Massachusetts, have invented an Improvement in *Machines for Forming Paper Cup-Bodies, of which'the followingis a specification.

' This invention 'relates to machines-for fommng paper cup-bodies for paper drink-' This invention has for its object the provision of an improved pasting-device for applying a line of paste to one of the side edges of the blank, upon which the other side edge of the blank is subsequently pressed; and also to pr0vide power-operated means for operating the astmg-device; and also to provide a contro ling-device for, the power-operated means whereby movement of the pasting-device may be arrested at any moment. Figure 1 is a side elevation of a forming machine for paper cup-bodies embodying this invention. Fig. 2 is a plan view of the same. Figs?) is an enlarged plan view of the paste-box. Fig. 4-is a longitudinal vertical section of the paste-box, taken on the dotted line v Fig. 5 is a perspective view of a form on which the cup-body is formed, with a blank thereon. Fig. 6 is an end view of the cup-body form.. 1O represents'the base of the machine, and 12 a forwardly extended adj ustable bracket secured to the base for supportm the cupody form- 13,- which latter is secured to the bracket, permitting cup-body forms of other shapes and sizes to be sup- "plied as may be required. The cup-body form is arrangedin an inclined, position for the. convenience of theoperator, who sits in.

Speciiication of Letters Patent.

etachably front of the machine. A frusto-conical cupbody form 13, 1s here shown for illustrating the invention.

from end to end 'ofit or thereabout, which ratenteuaan. 12, 19115.

Application filed August 30, 1913-. Serial No. 787,428

The cup-body form has a flattened portion 14, see Fig. 5, extended.

is done, said flattened portion being made wider. than the pasting-roll." A

rotatably supported at the forward extremlty of'aframe 16, which, frame, as here shown, has laterally extended guiding-portions 17, 17, slidably mounted on parallel gu de-bars l8 and 18, which provide for a reciprocating sliding movement of said frame 16, from the full to the dotted line 15 represents the pasting roll, which is positions shown in Fig. 1, and in a direction in parallel relation with the flat seat or bed 1 1 on the cup-body form. Said frame 16' has connected with it suitable operatingmeans for reciprocating it at regular inter? vals, or otherwise, as hereinafter described,

and, as here shown, it has secured to its upper end-portion a rack-bar 25, which engages a mutilated gear-wheel 26, secured to a rotating-shaft 27, which is adapted to be continuously driven, as by a belt-pulley 28 secured to said shaft 2'1, over which passes a belt 29, which passes over idle pulleys 30,

30, and over a pulley 31, secured to a powerdriven shaft 32. During each rotation of the mutilated'gear-wheel the rack-bar and frame to which itis attached are moved in one direction, as forward for instance, posi tively, and are then permitted to return. Their return movement isacc'omplished by means of a spring 35, which is connected at one end to the frame 16, and at theother end to the machineframe. As the frame 16, returns with considerable speed, bufi'ersprings 37, 37', are-arranged on'the guidebars 18, 18, against which the frame strikes,

thereby reducing the shock at the moment it resumes its normal position. In lieu of the operating-means here shown other operating-means may be employed forthus moving the pasting-roll at regular intervals.v

The pasting-roll when in its normal'posi- 1 tion, as represented by full lines 1, enT

. to be subsequently applied to the side-edge of a cup-body'blank, and acts to apply the paste thereto when moved forward into engagement therewith. v I

The operator bends the blank around the cup-body form 13, and holds it with one of its side edges above the flattened portion 14 thereof, as shown in Fig. 5, while the pasting-roll remains in engagement with the paste-supplying roll, incident to the toothless portion .of the mutilated gear-wheel passing beneath the rack-bar; then the toothed portion of said gear-wheel engages the rack-bar, and the pasting-roll is moved forward over the flattened portion 14, and a line of paste is applied on top of said portion-or edge of the blank; and then said pasting-roll returns to normal position, again'applying paste to the side-portion of the blank, and then the other side-portion of the blank is laid upon the aforesaid sideportion and pressed down firmly .by the pressure of the hand, whereuponthe side-' seam is completed. The'cup-body is then removed from the cup-body form. and another blank placed thereon, and the aforesaid operations'repeated.

- Ordinarily, in operating the machine the time allowed by the toothless portion of the mutilated gear-wheel in passing-beneath the rack-bar is sufiicient'for the operator to complete the closing of the side-seam and to re-' move the completed cup body. from the cupbody form, and apply another blank to said form preparatory to the next forward movem'entof the pasting-roll, but in case such time is not sufficient, under all conditions, controlling-means are provided for controlling the operation of the mutilated gearwheel or other means employed for operating the pasting-roll at regular intervals,

whereby itsmovement is or may be tempo--- rarily permitted to cease, and such controlling-means is'arr anged 'for operation by a treadle or'9th'er means under the control of the operator As a controlling-means for the operating-means for the pasting-roll a treadle controlled belt tightening device ,is here shown, consisting of a roll 50, arranged forengagement with the belt 29, said roll being rotatablyymounted on the end of an arm 51, which is pivoted at 52to a stand on the machine-frame. -A treadle-rod is connected at its upper end to said arm 51, which is connected-with a treadle 61, and upon depression' of the treadle the arm is moved to cause the roll 50 to engage the belt with a suflicient degree of pressure to tighten it and vcause the belt-pulley and mutilated gearwheel to rotate, and when pressure, upon the treadle is removed the arm 51 is raised bv a spring 54, which is connected with it, to lift the roll 50 and reduce the ressure on the belt, so as to slacken it SllifiClBIli} to admit of cessation of rotation of the belt-pulley and mutilated gear-wheel. While the operator is running the machine to the best advantage pressure will be continuously applied to the treadle, but in case of emergency, pressure thereupon maybe instantly-relieved, whereupon the paste-roll, is caused to remain in this normal position, or if it has started forward it will cease moving, and in case the spring 35 is made very strong the frame bearing the pasting-roll and also the mutilated gear will be returned to normal position, although if said spring is not'suliiciently strong to accomplish this result thepasting-roll will remain at rest in the position it occupies when pressure upon the treadle is relieved. A finger 63 15 attached to the arm 51, which extends beyond the circumference of'the roll 50 and over the belt 29, so that the belt runs between the roll and finger. T his finger assists in keeping the roll in cooperative relation with the belt and also acts to deflect-the belt in case it becomes stiff for any cause, and thus positively slacken it. v

I claim: 7

1. In a machine for preparing paper cup bodies, a cup body f0rm,'a frame including spaced guide bars arranged in parallelrela- Y tion,a moving frame including guiding por tions engaging the guide bars and a central portion, a pasting wheel carried by the central portion in advance of the guiding portions, and means for operating the moving frame whereby the pasting wheel may be extended in advance of the main frame to coiiperate with the cup body form.

2. Ina machine for preparing paper cup bodies, a cup body form, a main frame, spaced parallel guide bars supported on said main frame, a'sliding frame including lat eral portions, having sliding cooperation with the guide bars and a central portion extending body directions beyond the lateral portions, a pivoted. wheel carried by the central portion in advance of the lateral portions and operating member carried by r the central portion in rear of the lateral portion to actuate the moving frame 3. In a machine for preparing. paper cupbodies, the combination ofa cup-body form, a pasting-roll for cooperation with said form, a sliding-frame bearing said'pastingroll, a rack-bar secured .to said frame, a mutilatgad gear-wheel engaging said rack-bar, a.

belt-pulley secured to the shaftof said gear- In testimony whereof, I have signed thy wheel, a belt connecting said pulley with a name to this specification in the presence of power-driven belt-pulley, a belt-tightening two subscribing witnesses.

device, and means for operating said belt- HERBERT F. PROVANDIE. 5 tightening device to slacken the belt and Witnesses:

cause cessation of rotation of the gear-wheel, JOHN P. WYMAN,

substantially as described. I Amos L. TAYLOR. 

